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What chemical process is used for obtain...

What chemical process is used for obtaining a metal from its oxide?

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The chemical process is known as reduction.
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(a) Name two metals which are found in free state in nature. (b) What chemical process is used for extracting a metal from its oxide ore? Name one metal which is extracted by this method. (c) Describe the extraction of zinc metal from its sulphide ore as well as its carbonate ore. Write equations of all the reactions involved.

(a) What is reactivity series of metals ? What can you say about the reactivity of metals which are placed: (i) in the middle of reactivity series? (ii) towards the bottom of reactivity series? (iii) towards the top of reactivity series? (b) A metal is placed in the middle of reactivity series. Suggest a chemical process to obtain this metal from its oxide. Support you answer with one example. (c) A metal is placed towards the top of the reactivity series. Suggest a chemical process to obtain this metal from oxide. Support your answer with one example.

The entire scientific and techlolgical process used for isolation of the metal from its orea is known as

Aluminothermic process is used for the extraction of metals, whose oxides are

DINESH PUBLICATION-METALS AND NON-METALS-N.C.E.R.T
  1. Define the following terms. (i) Mineral (ii) Ore (iii) Gangue

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  2. Name two metals which are found in nature in the free state.

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  3. What chemical process is used for obtaining a metal from its oxide?

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  4. Metallic oxides of zinc, magnesium and copper were heated with the fol...

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  5. Which metals do not corrode easily?

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  6. What are alloys?

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  7. Which of the following pairs will give displacement reactions?

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  8. Which of the following methods is suitable for preventing an iron fryi...

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  9. An element reacts with oxygen to give a compound with a high melting p...

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  10. Food cans are coated with tin and not with zinc because

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  11. You are given a hammer, a battery, a bulb, wires and a switch. (a) H...

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  12. What are amphoteric oxides? Give two examples of amphoteric oxides.

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  13. Name two metals which will displace hydrogen from dilute acids, and tw...

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  14. In the electrolytic refining of a metal M, what would you take as the ...

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  15. Pratyush took sulphur powder on a spatula and heated it. He collected ...

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  16. State two ways to prevent the rusting of iron.

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  17. What type of oxides is formed when non-metals combine with oxygen?

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  18. Give reasons (a) Platinum, gold and silver are used to make jeweller...

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  19. You must have seen tarnished copper vessels being cleaned with lemon o...

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  20. A man went door to door posing as a goldsmith. He promised to bring ba...

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